DE102015108073B4 - Hybrid vehicle - Google Patents

Abstract

A hybrid vehicle comprising: an engine (1); a catalytic converter (32) that purifies exhaust gas from the engine (1); an engine generator (M1) configured to be driven by the engine (1) and electrical energy an electrical storage device (3) configured to charge and discharge electrical energy; a power supply device (40) configured to store at least one of the electrical energy generated by the motor generator (M1) , or the electrical energy of the electrical storage device (3) to the outside of the vehicle; andat least one electronic control unit (25), which is designed to aa) control the machine (1) and the power supply device (40), b) determine whether a cleaning state of the exhaust gas of the machine (1) is insufficient or not, andc) Prioritize a supply of the electrical energy of the electrical storage device (3) to the outside of the vehicle via a supply of the electrical energy generated by the motor generator (M1) to the outside of the vehicle when the cleaning state of the exhaust gas of the engine (1 ) is insufficient compared to a case where the cleaning state of the exhaust gas of the engine (1) is sufficient.

Description

BACKGROUND OF THE INVENTION

Field of the Invention

The invention relates to a hybrid vehicle, and more particularly, to a hybrid vehicle that has an outside power supply mode in which electrical energy is supplied to the outside of the vehicle.

Description of the Prior Art

A hybrid vehicle with an external power supply mode in which electrical energy or current is supplied to the outside of the vehicle is shown in FIG JP 2000-234539 A disclosed. In this hybrid vehicle, in the case where a state of charge (SOC) of a battery is equal to or greater than a specified value, the electric energy of the battery is supplied to the outside of the vehicle in a state in which an engine is over. On the other hand, in the case where the SOC of the battery is smaller than the specified value, the engine is turned on, the electric power generated in an engine is supplied to the outside of the vehicle, and the battery is charged. In addition, in the case where the engine is turned on, the engine speed is increased such that a catalyst is heated by an exhaust gas, and a temperature thereof becomes equal to or higher than an activation temperature.

US 2013/0 311 021 A1 shows a vehicle comprising: an electrical storage device configured to deliver electrical energy to an energy receiving system outside the vehicle; a power generation device configured to supply electric power to the electric storage device and the power receiving system; an engine that is a power source of the power generation device and that has a catalyst for purifying exhaust gases; and a control device. The control device is configured to control the vehicle so that a catalyst temperature becomes a first target value when there is a request to warm up the catalyst while driving, and the control device is configured to control the vehicle so that the Catalyst temperature becomes a second target value that differs from the first target value when there is a request to warm up the catalyst while supplying electrical energy to the power receiving system.

The DE 11 2013 002 805 T5 FIG. 12 shows an ECU executing a program, comprising: a step of setting a threshold as a shutdown threshold when, during a power supply operation, a power cut period exceeds a first time; a step of stopping operation of the machine or preventing operation of the machine; and a step of performing system shutdown processing when an SOC of the storage device falls to or below the shutdown threshold or the duration of the power interruption exceeds a second time.

SUMMARY OF THE INVENTION

In the ordinary hybrid vehicle, the engine is turned off when the SOC of the battery becomes equal to or larger than the specified value. Accordingly, there is a case where the engine is cooled while the battery electric power is supplied to the outside of the vehicle. In the event that the SOC of the battery later becomes smaller than the specified value and the electrical energy in the motor is generated by switching the machine on again, the machine has been cooled and accordingly an amount of exhaust gas emissions (one Amount of pollutants in the exhaust gas) increased.

The invention provides a hybrid vehicle that produces a small amount of exhaust emissions when electrical energy is supplied to the outside.

A hybrid vehicle according to one aspect of the invention comprises: an engine; a catalyst that purifies exhaust gas from the engine; a motor generator configured to be driven by the machine and to generate electrical energy; an electrical storage device configured to store and deliver electrical energy; a power feed that is configured to supply or discharge at least one of the electrical energy generated by the motor generator or the electrical energy of the electrical storage device to an outside of the vehicle; and at least one electronic control unit that is designed to a) control the machine and the power supply, b) determine whether a cleaning state of the exhaust gas of the machine is insufficient or not, and c) supply Prioritize electrical energy from the electrical storage device to the outside or outside of the vehicle via a supply of the electrical energy generated by the motor generator to the outside of the vehicle when the cleaning state of the exhaust gas of the engine is insufficient compared to a case where the cleaning state of the exhaust gas of the engine is sufficient. Accordingly, the supply of the electrical energy of the electrical storage device to the outside of the vehicle is prioritized over the supply of the electrical energy generated in the motor generator (hereinafter referred to simply as "motor") to the outside of the vehicle, if the cleaning state of the Exhaust gas is insufficient. Accordingly, an amount of exhaust emissions can be reduced.

The electronic control unit may be configured to a) determine whether or not the cleaning condition of the exhaust gas of the engine is insufficient by determining whether or not warming up the engine is inadequate, b) if the engine warm-up is insufficient, the electrical Deliver energy of the electrical storage device to the outside of the vehicle while the engine is stopped, then activate or operate the engine and deliver the electrical energy generated by the engine to the outside of the vehicle, and c) when the warm-up of the engine is sufficient to activate or stop the engine and to discharge the at least one of the electric power generated by the engine or the electric power of the electric storage device to the outside of the vehicle. In this case, the electric power of the electric storage device is supplied to the outside of the vehicle in the state that the engine is off if the warm-up of the engine is insufficient. Then the machine is switched on. Accordingly, the amount of exhaust gas emissions can be reduced.

The electronic control unit may be configured to a) determine when the temperature of a coolant of the machine is less than a predetermined temperature, that the warm-up of the machine is insufficient, and b) when the temperature of the coolant of the machine is equal how or higher than the predetermined temperature is to determine that the warm-up of the machine is sufficient. In this case, it is possible to easily and accurately determine whether the warming-up of the machine is insufficient.

The electronic control unit may be configured to, in the case where the warm-up of the machine is insufficient, a) when an elapsed time since an electric power supply to the outside of the vehicle is initiated is shorter than a predetermined time period deliver the electric storage device to the outside of the vehicle while the engine is stopped, and b) when the elapsed time period is equal to or longer than the predetermined time period, to operate the engine and the electrical energy generated by the engine to deliver to the outside of the vehicle. In this case, over-discharging or deep discharging of the electrical storage device can be prevented.

The electronic control unit may be configured to, in the case where the warm-up of the machine is insufficient, a) when a state of charge of the electrical storage device is higher than a predetermined state of charge, the electrical energy of the electrical storage device to the outside of the To deliver the vehicle to the vehicle while the engine is stopped, and b) when the state of charge of the electric storage device is equal to or less than the predetermined state of charge, start the engine and increase the electric power generated by the engine to deliver to the outside of the vehicle. In this case, the over-discharging or deep-discharging of the electrical storage device can be reliably prevented.

The electronic control unit may be configured to a) determine whether or not the cleaning condition of the exhaust gas of the engine is insufficient by determining whether or not a cleaning rate of the catalyst is sufficiently high, b) if the cleaning rate of the catalyst is not high enough to deliver the electrical energy of the electrical storage device to the outside of the vehicle while the engine is stopped, then to start the engine and the electrical energy generated by the engine to the outside of the vehicle and c) when the cleaning rate of the catalyst is sufficiently high to operate or stop the engine and the at least one of the electrical energy generated by the engine or the electrical energy of the electrical storage device to the outside of the Surrender vehicle. In this case, if the cleaning rate of the catalyst is not sufficiently high, the electrical energy of the electrical storage device is supplied to the outside of the vehicle in the state that the engine is off. Then the machine is switched on. Accordingly, the amount of exhaust gas emissions can be reduced.

The electronic control unit may be configured to a) determine when the temperature of the catalyst is less than a predetermined temperature that the cleaning rate of the catalyst is not sufficiently high, and b) when the temperature of the catalyst is equal to or is higher than the predetermined temperature, to determine that the cleaning rate of the catalyst is sufficiently high. In this case it is possible to easily determine whether the cleaning rate of the catalyst is insufficient.

The electronic control unit may be configured to change the predetermined temperature such that the predetermined temperature rises as the catalyst deteriorates. In this case, even if the catalyst is deteriorated, the amount of exhaust emissions can be reduced.

The electronic control unit may be configured to, in the case where the cleaning rate of the catalyst is not sufficiently high, a) when an elapsed time since an electric power supply to the outside of the vehicle is initiated is shorter than the predetermined time period deliver the electrical energy of the electrical storage device to the outside of the vehicle while the machine is stopped, and b) when the elapsed time period is equal to or longer than the predetermined time period, operate the machine and deliver the electrical energy generated by the engine to the outside of the vehicle. In this case, the electrical storage device can be prevented from being overcharged.

The electronic control unit may be configured to, in the case where the cleaning rate of the catalyst is not sufficiently high, a) when the state of charge of the electrical storage device is higher than the predetermined state of charge, the electrical energy of the electrical storage device to the outside of the Deliver vehicle while the engine is stopped, and b) when the state of charge of the electrical storage device is equal to or less than the predetermined state of charge, start the engine and the electrical energy generated by the engine to the Deliver outside of the vehicle. In this case, over-discharging of the electrical storage device can be reliably prevented.

The electronic control unit may be configured to, in the case where the electrical energy generated by the motor is supplied to the outside of the vehicle, the engine is stopped and the electrical energy of the electrical storage device to the outside of the vehicle a) when the temperature of the catalyst is lower than the predetermined temperature, to start the engine and to release the electric power generated by the engine to the outside of the vehicle, and b) when the temperature of the catalyst is equal to or higher than the predetermined temperature to start or stop the engine and the at least one of the electrical energy generated by the engine or the electrical energy of the electrical storage device to the outside of the Deliver vehicle. In this case, when the temperature of the catalyst becomes lower than the predetermined temperature, the engine is immediately turned on and the catalyst is heated. Accordingly, the amount of exhaust gas emissions can be reduced.

The electronic control unit may be configured to change the predetermined temperature such that the predetermined temperature rises as the catalyst deteriorates. In this case, even if the catalyst is deteriorated, the amount of exhaust gas emissions can be reduced.

The electronic control unit may be configured to, in the case where the electrical energy generated by the motor is supplied to the outside of the vehicle, the engine is stopped and the electrical energy of the electrical storage device to the outside of the vehicle a) when a periodic stop period of the engine is longer than a predetermined period, to start the engine and to release the electric power generated by the engine to the outside of the vehicle , and b) if the intermediate stopping time of the machine is equal to or shorter than the predetermined time period, to start or stop the machine and the at least one of the electrical energy generated by the motor or the electrical Deliver energy of the electrical storage device to the outside of the vehicle. In this case, when the engine stop time becomes longer and the catalyst cleaning rate is lowered, the engine is immediately turned on and the catalyst is heated. Accordingly, the amount of exhaust gas emissions can be reduced.

The electronic control unit may be configured to change the predetermined period of time such that the predetermined period of time decreases as the catalyst deteriorates. In this case, even if the catalyst deteriorates, the amount of exhaust emissions can be reduced.

As described above, according to the aspects of the invention, the amount of exhaust gas emission can be reduced in a period in which the electric power is supplied to the outside.

Figure list

• 1 ein Blockdiagramm einer Konfiguration eines Hybridfahrzeugs gemäß einer ersten Ausführungsform der Erfindung ist;
• 2 ein Flussdiagramm zum Darstellen eines Betriebs des Hybridfahrzeugs, das in 1 gezeigt ist, in einem Außenstromversorgungsmodus ist;
• 3 ein Flussdiagramm zum Darstellen eines Betriebs des Hybridfahrzeugs gemäß einer zweiten Ausführungsform der Erfindung in dem Außenstromversorgungsmodus ist;
• 4 ein Flussdiagramm zum Darstellen eines Betriebs des Hybridfahrzeugs gemäß einer dritten Ausführungsform der Erfindung in dem Außenstromversorgungsmodus ist;
• 5 ein Flussdiagramm zum Darstellen eines Betriebs des Hybridfahrzeugs gemäß einer vierten Ausführungsform der Erfindung in dem Außenstromversorgungsmodus ist;
• 6 eine Tabelle ist, die eine Beziehung zwischen einem Verschlechterungsgrad eines Katalysators und eines spezifizierten Werts darstellt, welche in 5 gezeigt sind;
• 7 ein Flussdiagramm zum Darstellen eines Betriebs des Hybridfahrzeugs gemäß einer fünften Ausführungsform der Erfindung in dem Außenstromversorgungsmodus ist;
• 8 ein Flussdiagramm zum Darstellen eines Betriebs des Hybridfahrzeugs gemäß einer sechsten Ausführungsform der Erfindung in dem Außenstromversorgungsmodus ist;
• 9 eine Tabelle ist, die eine Beziehung zwischen dem Verschlechterungsgrad des Katalysators und einem spezifizierten Wert darstellt, die in 8 gezeigt sind;
• 10 ein Flussdiagramm zum Darstellen eines Betriebs des Hybridfahrzeugs gemäß einer siebten Ausführungsform der Erfindung in dem Außenstromversorgungsmodus ist;
• 11 ein Zeitdiagramm zum Veranschaulichen des Betriebs des Hybridfahrzeugs ist, das in 10 gezeigt ist;
• 12 ein Flussdiagramm zum Darstellen eines Betriebs des Hybridfahrzeugs gemäß einer achten Ausführungsform der Erfindung in dem Außenstromversorgungsmodus ist; und
• 13 ein Zeitdiagramm zum Veranschaulichen des Betriebs des Hybridfahrzeugs ist, das in 12 gezeigt ist.

Features, advantages, and technical and commercial significance of the exemplary embodiments of the invention will be described below with reference to the accompanying drawings, in which like reference numerals designate like elements, and wherein:

• 1 FIG. 4 is a block diagram of a configuration of a hybrid vehicle according to a first embodiment of the invention;
• 2nd FIG. 5 is a flowchart showing an operation of the hybrid vehicle shown in FIG 1 is shown in an external power supply mode;
• 3rd FIG. 4 is a flowchart illustrating an operation of the hybrid vehicle according to a second embodiment of the invention in the external power supply mode;
• 4th FIG. 4 is a flowchart illustrating an operation of the hybrid vehicle according to a third embodiment of the invention in the external power supply mode;
• 5 FIG. 4 is a flowchart illustrating an operation of the hybrid vehicle according to a fourth embodiment of the invention in the external power supply mode;
• 6 FIG. 12 is a table illustrating a relationship between a degree of deterioration of a catalyst and a specified value, which is shown in FIG 5 are shown;
• 7 FIG. 14 is a flowchart showing an operation of the hybrid vehicle according to a fifth embodiment of the invention in the external power supply mode;
• 8th FIG. 14 is a flowchart showing an operation of the hybrid vehicle according to a sixth embodiment of the invention in the external power supply mode;
• 9 FIG. 12 is a table showing a relationship between the degree of deterioration of the catalyst and a specified value, which is shown in FIG 8th are shown;
• 10 FIG. 14 is a flowchart showing an operation of the hybrid vehicle according to a seventh embodiment of the invention in the external power supply mode;
• 11 FIG. 10 is a timing diagram illustrating the operation of the hybrid vehicle shown in FIG 10 is shown;
• 12th FIG. 4 is a flowchart illustrating an operation of the hybrid vehicle according to an eighth embodiment of the invention in the external power supply mode; and
• 13 FIG. 10 is a timing diagram illustrating the operation of the hybrid vehicle shown in FIG 12th is shown.

DETAILED DESCRIPTION OF THE EMBODIMENTS

First Embodiment 1 10 is a block diagram of a configuration of a hybrid vehicle according to a first embodiment of the invention. In 1 this hybrid vehicle has a machine 1 , Engines M1 , M2 , an electrical storage device 3rd , an energy or power sharing mechanism 10 , a coaster 11 , Drive wheels 12th , an energy or power control unit (PCT) 20 and a control unit 25th on. The control unit 25th is also referred to as an electronic control unit (ECU). The invention can be implemented using multiple ECUs.

The machine 1 is an internal combustion engine created by the control unit 25th is controlled and generates drive power to rotate a crankshaft using combustion energy generated when an air-fuel mixture of air and fuel is burned and drawn into a combustion chamber. Everyone from the engines M1 , M2 is an AC electric motor or an AC electric motor and is, for example, a three-phase AC synchronous electric motor.

This hybrid vehicle travels through the drive power provided by at least one of the machine 1 and the engine M2 is issued. The drive power generated by the machine 1 is generated by the power sharing mechanism 10 divided into two. Part of the drive power is sent to the drive wheel 12th over the coaster 11 transmitted, and the other part of the drive power is sent to the engine M1 transfer.

In addition, when the vehicle is stopped or when electric power is supplied to the outside, the engine M1 through the machine 1 powered and the electrical energy can be supplied by the motor M1 be generated. The electrical energy generated by the motor M1 is generated becomes either the electrical storage device 3rd fed and in the electrical storage device 3rd saved, or becomes electrical equipment 43 fed outside the vehicle.

The energy or power sharing mechanism 10 has a planetary gear, which is designed by having a sun gear, a pinion gear, a carrier and a ring gear. The pinion gear meshes with the sun gear and the ring gear. The carrier supports the pinion gear rotates and is connected to the crankshaft of the machine 1 coupled. The sun gear is with a rotating shaft of the motor M1 coupled. The ring gear is with a rotating shaft of the motor M2 and the coaster 11 coupled.

A cooler 13 for cooling a coolant through the machine 1 is heated is provided at a front end of the vehicle. A coolant passage of the machine 1 and a coolant passage of the cooler 13 are ring-like connected by a hose or the like and the coolant is in the coolant passage of the machine 1 and the coolant passage of the cooler 13 circulates. If the machine 1 is turned on, the coolant is through the machine 1 warmed up and then through the cooler 13 chilled. In this way, a temperature of the coolant, that is, an engine coolant temperature Tw elevated. A temperature detector 2nd is at a specified position in the machine 1 intended. The temperature detector 2nd detects the engine coolant temperature Tw and outputs a signal indicating a detected value to the control unit 25th out.

The electrical storage device 3rd is an electrical power storage element designed to allow charging and discharging. The electrical storage device 3rd is designed by having a secondary battery, such as a lithium ion battery, a nickel-hydrogen battery or a lead storage battery, or a cell of an electrical storage element, such as an electrical double layer capacitor. An SOC detector or a charge state detection device 4th for detecting an SOC of the electrical storage device 3rd is with the electrical storage device 3rd connected.

The SOC detector 4th detects the SOC of the electrical storage device 3rd and sends a signal to the control unit 25th that indicates a captured value. The SOC detector 4th has, for example, a voltage detector for detecting a voltage between terminals of the electrical storage device 3rd , a current detector for detecting a charge current and a discharge current of the electrical storage device 3rd , a temperature detector for detecting a temperature of the electrical storage device 3rd and a calculation section for calculating the SOC of the electrical storage device 3rd on the basis of the detected values of the three detectors or for the output of a signal which indicates the calculated SOC.

The electrical storage device 3rd is with the PCU 20 for driving the motors M1 , M2 via a relay 24th connected. The electrical energy or the current of the electrical storage device 3rd becomes either the PCU 20 to generate the drive power of the hybrid vehicle or to the electrical equipment 43 fed outside the vehicle. The electrical storage device further stores 3rd the electrical energy in the motors M1 , M2 is generated. The voltage between the terminals of the electrical storage device 3rd is for example 200 V.

The PCU 20 has a converter 21st , Inverter 22 , 23 and a capacitor C1 on. The converter 21st is by a control signal S1 from the control unit 25th controls and converts a level of DC voltage between power lines PL1, NL1 and between power lines PL2 , NL1 around.

The inverters 22 , 23 are regarding the power lines PL2 , NL1 connected in parallel. The inverters 22 , 23 are controlled by control signals S2 , S3 from the control unit 25th controlled, convert DC power or current from the converter 21st is supplied in AC power or current and drive the motors accordingly M1 , M2 on. The inverter also converts 22 the AC power in the motor M1 is generated by the machine 1 is driven into the DC power and leads the DC power between the power output PL2 , NL1 to. The condenser C1 is between the power lines PL2 , NL1 connected and stabilized the voltage between the power lines PL2 , NL1 .

The machine 1 is by a control signal S4 from the control unit 25th controlled. More specifically, a throttle opening degree, an ignition timing, a fuel injection timing, a fuel injection amount, an operation state (opening / closing time, a lift amount, an operation angle, and the like) of an intake valve of the engine 1 controlled so the machine 1 to bring into a desired operating state. The air passes through an inlet passage 30th into the machine 1 initiated. Exhaust gas from the machine 1 is discharged, flows through an exhaust gas or exhaust passage 31 and is delivered to the outside of the vehicle. The exhaust passage 31 is with a catalyst 32 provided for cleaning the exhaust gas. The catalyst 32 For example, is a three-way catalyst and purifies carbon monoxide (CO), hydrocarbon (HC), NOx and PM (particulates, soot, foreign matter) contained in the exhaust gas.

The catalyst 32 is with a temperature detector 33 to detect a bed temperature Tc of the catalyst 32 Mistake. The temperature detector 33 gives a recorded value of the catalyst bed temperature Tc to the control unit 25th out. The catalyst 32 has such a characteristic that a Cleaning rate of this is increased in a state in which it is heated to a specified activation temperature. In addition, the exhaust passage 31 with an air-fuel ratio detector 34 provided for detecting an air-fuel ratio of the exhaust gas. The air-fuel ratio detector 34 gives a detected value of an air-fuel ratio AF of the exhaust gas to the control unit 25th out.

The control unit 25th controls the entire hybrid vehicle based on the air-fuel ratio AF, which is by the air-fuel ratio detector 34 is recorded, the catalyst bed temperature Tc by the temperature detector 33 the engine coolant temperature is detected Tw by the temperature detector 2nd SOC is detected by the SOC detector 4th is detected, and the like.

It should be noted that instead of using the temperature detector 33 the control unit 25th the catalyst bed temperature Tc based on a parameter to control the machine 1 can appreciate. In addition, the catalyst 32 by having a front catalytic converter located on an upstream side of the exhaust passage 31 is located, and may be configured of a rear catalytic converter located on a downstream side of the exhaust passage 31 located. Furthermore, the air-fuel ratio detector 34 may be located on an upstream side of the front catalyst, may be between the front catalyst and the rear catalyst, or may be on a downstream side of the rear catalyst.

The hybrid vehicle also has an inverter 40 and a power supply terminal 41 as a configuration for supplying the electric power to the electrical equipment 43 outside of the vehicle. The power connector 41 is a current interface for supplying the electrical power or energy to the electrical equipment or the electrical equipment 43 . The power connector 41 is designed to connect to a plug or connector 42 to be connectable with the electrical equipment 43 connected is.

The inverter 40 is between the power supply connector 41 and a position between the electrical storage device 3rd and the PCU 20 intended. The inverter 40 is by a control signal S5 from the control unit 25th controlled, converts the DC power of at least one of the electrical storage device 3rd and the PCU 20 to the AC power in an external power supply mode and leads the AC power to the electrical equipment 43 via the power supply connection 41 and the connector or plug 42 to. The PCU 20 , the relay 24th and the inverter 40 form a power supply device for emitting at least one of the electrical energy contained in the motor M1 is generated, and the electrical energy of the electrical storage device 3rd , to the outside of the vehicle in the outside power supply mode.

Next, description will be made regarding the external power supply mode as a characteristic of the invention of the present application. In such a hybrid vehicle, a reduction in an amount of exhaust emissions is constantly required. As a case of a large amount of exhaust emissions will be a first case where the engine is warming up 1 is insufficient, a second case in which a cleaning rate of the catalyst 32 is not sufficiently high, a third case in which a load on the machine 1 fluctuates, and a fourth case highlighted in which the load of the machine 1 exceeds an upper limit. In view of the foregoing, in the invention of the present application, the first and second embodiments are directed to the first case, the third to sixth embodiments are directed to the second case, the seventh embodiment is directed to the third case, and the eighth embodiment is directed yourself on the fourth case. In this way, the amount of exhaust emissions is reduced.

2nd Fig. 14 is a flowchart for explaining an operation of the control unit 25th , in the 1 is shown in the external power supply mode. For example, the external power supply mode is set when an operator of the hybrid vehicle unplugs the connector 42 which connects with the electrical equipment 43 is connected to the power supply connector 41 , and then operated the outdoor power mode setting button (not shown).

In 2nd determines the control unit 25th in step S1 whether the machine is warming up 1 is insufficient. Whether warming up the machine 1 is insufficient can be determined based on a result obtained by directly or indirectly sensing a temperature of the machine 1 (for example the engine coolant temperature Tw by the temperature detector 2nd can be obtained based on the temperature of the machine 1 be determined from an operating parameter of the machine 1 is estimated, or can be determined based on an elapsed time since the machine 1 is switched on or off. The determination regarding whether warming up the machine 1 is insufficient corresponds to a determination of whether a cleaning condition of the exhaust gas of the engine 1 is insufficient.

If it is in step S1 it is determined that the warming up of the machine 1 is inadequate in step S2 determines whether a present time or an actual time is in an initial period of initiating the power supply. For example, whether the present time is in the initial period of initiation of the power supply is determined based on whether a period of time Ts that has elapsed since the external power supply was initiated is shorter than a specified period of time t1 is.

The specified length of time t1 may be a constant period of time, a period of time that varies by an outside temperature, or a period of time that varies by a power supply rate to the outside. When the external power supply period ts is equal to or shorter than the specified period t1 is, the electrical energy or the current of the electrical storage device 3rd not inadequate. A loss of electrical energy from the electrical storage device 3rd is accelerated when the outside temperature is reduced. Therefore, the specified period of time t1 be set shorter in accordance with a decrease in the outside temperature.

If it is in step S2 it is determined that the present or current point in time is in the initial period of the initiation of the power supply, the control unit controls 25th the machine 1 who have favourited PCU 20 and the relay 24th in step S3 such that only the electrical energy of the electrical storage device 3rd is fed to the outside in a state where the machine 1 is over. Then the process returns to step S1 back.

If it is in step S2 it is determined that the present or current point in time is not in the initial period of the initiation of the power supply, the control unit controls 25th the machine 1 who have favourited PCU 20 and the relay 24th in step S4 such that the machine 1 is turned on and only the electrical energy in the motor M1 is generated, is supplied to the outside. Then the process returns to step S1 back.

If it is in step S1 it is determined that the warming up of the machine 1 is sufficient, the control unit controls 25th the machine 1 who have favourited PCU 20 and the relay 24th in step S5 such that at least one of the electrical energy contained in the motor M1 is generated by the machine 1 is driven, and the electrical energy of the electrical storage device 3rd is fed to the outside. Then the process returns to step S1 back.

If an external load in step S5 fluctuates and the electrical energy contained in the motor M1 is generated, an excess of this becomes in the electrical storage device 3rd saved. On the other hand, if the electrical energy in the motor M1 is insufficient due to a supply from the electrical storage device 3rd compensated. If the SOC of the electrical storage device 3rd the machine is sufficiently large 1 stopped and only the electrical energy from the electrical storage device 3rd is fed to the outside.

In the first embodiment, if the machine is warming up 1 is insufficient, the electrical energy of the electrical storage device 3rd fed to the outside of the vehicle in the state in which the machine 1 is over. Then the machine 1 switched on. In other words, if the machine is warming up 1 is insufficient, the supply of electrical energy from the electrical storage device 3rd to the outside of the vehicle via the supply of electrical energy by turning on the machine 1 is prioritized to the outside of the vehicle. The amount of exhaust gas emissions can be reduced accordingly.

Second Embodiment This second embodiment is also directed to a fact that the amount of exhaust emissions is increased in the first case where the engine is warmed up 1 is insufficient to reduce the amount of exhaust gas emissions. Whether warming up the machine 1 is insufficient, it is determined based on whether the engine coolant temperature Tw by the temperature detector 2nd is detected, less than a specified temperature T1 is.

3rd FIG. 12 is a flowchart illustrating an operation of the hybrid vehicle according to the second embodiment of the invention in the external power supply mode 2nd compared. In 3rd determines the control device 25th in step S1A whether the engine coolant temperature Tw is less than the specified temperature T1 . If Tw <T1 is satisfied, the control unit determines 25th in step S2A whether the SOC of the electrical storage device 3rd is greater than a specified value X.

If it is in step S2A it is determined that SOC> X is fulfilled, controls the control unit 25th the machine 1 who have favourited PCU 20 and the relay 24th in step S3 such that only the electrical energy of the electrical storage device 3rd is fed to the outside in the state in which the machine 1 is over. Then the process returns to step S1A back.

If it is in step S2A it is determined that SOC> X is not met, controls the control unit 25th the machine 1 who have favourited PCU 20 and the relay 24th in step S4 such that the machine 1 is on and only the electrical energy in the motor M1 is generated, is fed to the outside. Then the process returns to step S1A back.

If it is in step S1A it is determined that Tw <T1 is not fulfilled, the control unit controls 25th the machine 1 who have favourited PCU 20 and the relay 24th in step S5 such that the at least one of the electrical energy contained in the motor M1 is generated by the machine 1 is driven, and the electrical energy of the electrical storage device 3rd is fed to the outside. Then the process returns to step S1A back.

In this second embodiment, if the engine coolant temperature Tw lower than the specified temperature T1 is the electrical energy of the electrical storage device 3rd fed to the outside of the vehicle in the state in which the machine 1 is over. Then the machine 1 switched on. In other words, if the engine coolant temperature Tw lower than the specified temperature T1 is, if the machine is warming up 1 is insufficient, the supply of electrical energy from the electrical storage device 3rd to the outside of the vehicle via the supply of electrical energy by turning on the machine 1 is prioritized to the outside of the vehicle. Accordingly, the amount of exhaust gas emissions can be reduced.

It should be noted that in this second embodiment based on whether the engine coolant temperature Tw lower than the specified temperature T1 is determined whether the machine is warming up 1 is insufficient. However, the invention is not so limited. The temperature of the machine 1 can be detected directly or indirectly, and it can be determined based on the detected temperature whether the machine is warming up 1 is insufficient. It can also change the temperature of the machine 1 based on an operating status of the machine 1 can be estimated and it can be determined whether the machine is warming up 1 is insufficient based on the estimated temperature.

Furthermore, in this second embodiment, the electrical energy of the electrical storage device 3rd fed to the outside if the SOC of the electrical storage device 3rd is greater than the specified value X. However, the invention is not so limited. The electrical energy of the electrical storage device 3rd can be supplied to the outside if a reduced amount ΔSOC of the SOC of the electrical storage device 3rd is smaller than a specified value ΔX (ΔSOC <ΔX). In the case where the SOC is 100% when the external power supply is initiated, the same result can be obtained by using any method.

Third Embodiment This third embodiment focuses on a fact that the amount of exhaust emissions is increased in the second case where the purification rate of the catalyst 32 is not high enough to reduce the amount of exhaust emissions. 4th FIG. 12 is a flowchart showing an operation of the hybrid vehicle according to the third embodiment in the external power supply mode 2nd compared. 4th differs from 2nd at one point that step S1 through step S1B is replaced.

The control unit 25th determined in step S1B whether a catalyst cleaning rate is not high enough. If the catalyst cleaning rate is not sufficiently high, the process goes to step S2 away. On the other hand, if the catalyst cleaning rate is sufficiently high, the process goes to step S5 away. Whether the cleaning rate of the catalyst 32 is not sufficiently high, can be determined on the basis of a result by directly or indirectly detecting the bed temperature Tc of the catalyst 32 is obtained, or can be determined based on an elapsed time since the machine 1 is switched on or off. The determination regarding whether the cleaning rate of the catalyst 32 is not sufficiently high corresponds to a determination as to whether the cleaning state of the exhaust gas of the machine 1 is insufficient. Since the other configurations and operations are the same as those in the first embodiment, the description thereof will not be repeated.

In this third embodiment, the electrical energy of the electrical storage device 3rd fed to the outside of the vehicle in the state in which the machine 1 is off if the catalyst cleaning rate is not sufficiently high. Then the machine 1 switched on. In other words, if the catalyst cleaning rate is not sufficiently high, the supply of electrical energy from the electrical storage device 3rd to the outside of the vehicle via the supply of electrical energy by turning on the machine 1 is prioritized to the outside of the vehicle. Accordingly, the amount of exhaust gas emissions can be reduced.

Fourth Embodiment This fourth embodiment also focuses on the fact that the amount of exhaust gas emissions is increased in the second case, in which the purification rate of the catalyst 32 is not high enough to reduce the amount of exhaust emissions. Whether the catalyst cleaning rate is not sufficiently high is open the base determines whether the catalyst bed temperature Tc less than a specified temperature T2 is.

5 FIG. 12 is a flowchart showing an operation of the hybrid vehicle according to the fourth embodiment of the invention in the external power supply mode 3rd compared. 5 differs from 3rd at one point that step S1A through step S1B is replaced. The control unit 25th determined in step S1B whether the catalyst bed temperature Tc lower than the specified temperature T2 is. If Tc <T2 is fulfilled, the process continues with step S2A away. If Tc <T2 is not satisfied, the process goes to step S5 away.

The specified temperature T2 is on the activation temperature of the catalyst 32 set. The catalyst 32 is activated when the catalyst bed temperature Tc equal to or higher than the activation temperature and purifies the exhaust gas. The specified temperature T2 may be a constant value or may be in accordance with a degree of deterioration of the catalyst 32 be increased as in 6 is shown. That is because the catalyst 32 deteriorates in accordance with a usage time or the like, and also because the activation temperature of the catalyst 32 in accordance with the degree of deterioration of the catalyst 32 is increased. For example, the control unit saves 25th a table showing a relationship between a total usage time (ie the degree of deterioration) of the catalyst 32 and the specified temperature T2 and reads the specified temperature from the table T2 from the total catalyst usage time 32 corresponds. Since the other configurations and operations are the same as those in the second embodiment, the description thereof will not be repeated.

In this fourth embodiment, the electrical energy of the electrical storage device 3rd fed to the outside of the vehicle in the state in which the machine 1 is off if the catalyst bed temperature Tc lower than the specified temperature T2 is. Then the machine 1 switched on. In other words, if the catalyst bed temperature Tc less than the specified temperature T2 , that is, if the catalyst cleaning rate is not sufficiently high, the supply of electrical energy from the electrical storage device 3rd to the outside of the vehicle via the supply of electrical energy by turning on the machine 1 is prioritized to the outside of the vehicle. Accordingly, the amount of exhaust gas emissions can be reduced.

Fifth Embodiment This fifth embodiment is also directed to a fact that the amount of exhaust emissions in the second case is increased when the purification rate of the catalyst 32 is not high enough to reduce the amount of exhaust emissions. Whether the catalyst cleaning rate is not sufficiently high is determined based on whether an estimated catalyst bed temperature Tce lower than the specified temperature T2 is. 7 FIG. 14 is a flowchart showing an operation of the hybrid vehicle according to the fifth embodiment of the invention in the external power supply mode 2nd compared.

The control unit 25th determined in step S11 from 7 whether the catalyst bed temperature Tce based on the operating status of the machine 1 (the engine speed or the like) is estimated to be lower than the specified temperature T2 is. If Tce <T2 is satisfied, the control unit determines 25th in step S12 whether the machine 1 is in an ON state. step S11 is carried out, for example, in the first embodiment in the case where the electrical energy generated in the motor M1 is generated, is fed to the outside of the vehicle, then the machine 1 is turned off and the electrical energy of the electrical storage device 3rd is fed to the outside of the vehicle.

The specified temperature T2 may be the constant value or may be in accordance with the degree of deterioration of the catalyst 32 be increased as in 6 is shown. If it is in step S12 it is determined that the machine 1 is not in the on state, the machine is in step S13 switched on. Then the process returns to step S11 back. At this point the machine speed 1 set such that the catalyst bed temperature Tce equal to or greater than the specified temperature T2 becomes.

If it is in step S12 it is determined that the machine 1 is in the on state, the on state of the machine 1 in step S14 continued. Then the process returns to step S11 back. If it is in step S11 it is determined that Tce <T2 is not met, ie if the catalyst cleaning rate is sufficiently high 32 is guaranteed, the electrical energy to the outside of the motor M1 , the electrical storage device 3rd or from both the engine M1 as well as the electrical storage device 3rd in step S15 fed.

In this fifth embodiment, the machine 1 immediately turned on, and the catalyst 32 is heated if the catalyst bed temperature Tce lower than the specified temperature T2 is, ie in the second case, in which the catalyst cleaning rate is not sufficiently high. Accordingly, the amount of exhaust gas emissions can be reduced.

It should be noted that in this fifth embodiment, the catalyst bed temperature Tce is used based on the operating status of the machine 1 is appreciated. However, the catalyst bed temperature can Tc used by the temperature detector 33 in 1 is recorded.

Sixth Embodiment This sixth embodiment also focuses on the fact that the amount of exhaust emissions is increased in the second case where the purification rate of the catalyst 32 is not high enough to reduce the amount of exhaust emissions. Whether the catalyst cleaning rate is not sufficiently high is determined based on whether an interrupted stop period Ti as a length of time that has passed since the machine 1 stopped, is longer than a specified period of time t2 . 8th FIG. 12 is a flowchart showing an operation of the hybrid vehicle according to the sixth embodiment of the invention in the external power supply mode and is associated with 2nd compared.

The control unit 25th determined in step S21 from 8th whether the interrupted stop period ti of the machine 1 longer than the specified time t2 is. step S21 is carried out, for example, in the first embodiment in the case where the electrical energy generated in the motor M1 is generated, is fed to the outside of the vehicle, then the machine 1 is turned off and the electrical energy of the electrical storage device 3rd is fed to the outside of the vehicle.

The specified length of time t2 may be a constant value or may be a value that is in accordance with the degree of deterioration of the catalyst 32 is reduced as in 9 is shown. That is because the catalyst 32 in accordance with the usage time or the like, and also because the activation temperature of the catalyst 32 in accordance with the degree of deterioration of the catalyst 32 is increased. For example, the control unit saves 25th a table showing a relationship between the total usage time (ie the degree of deterioration) of the catalyst 32 and the specified length of time t2 and reads the specified period of time t2 , the total usage time of the catalyst 2nd corresponds from the table.

If ti> t2 in step S21 is fulfilled, ie if the catalyst 32 the machine is cooled and the catalyst cleaning rate is not sufficiently high 1 in step S22 turned on and the electrical energy in the motor M1 generated is supplied to the outside. At this point the machine speed 1 set such that the catalyst bed temperature Tc higher than the activation temperature of the catalyst 32 will when the machine 1 for the specified period of time t2 is on. If it is in step S21 it is determined that ti> t2 is not met, ie if the sufficiently high cleaning rate of the catalyst 32 is guaranteed, the electrical energy from the motor M1 , the electrical storage device 3rd or both the engine M1 as well as the electrical storage device 3rd in step S23 fed to the outside.

In this sixth embodiment, if the interrupted stop period ti is the specified period t2 exceeds, that is, in the second case where the catalyst cleaning rate is not sufficiently high, the engine will 1 immediately turned on and the catalyst 32 is heated. Accordingly, the amount of exhaust gas emissions can be reduced.

Seventh Embodiment This seventh embodiment focuses on a fact that the amount of exhaust emissions is increased in the third case where the load of the engine 1 fluctuates so as to reduce the amount of exhaust gas emissions. 10 FIG. 12 is a flowchart showing an operation of the hybrid vehicle according to the seventh embodiment of the invention in the external power supply mode 2nd compared.

In step S31 from 10 the control unit calculates 25th an operational load (a specified value P1 ) the machine 1 with which the cleaning rate of the catalyst 32 can be increased sufficiently based on the activation temperature, the degree of deterioration or the like of the catalyst 32 . Then the control unit initiates 25th the machine 1 , steady at the specified value P1 to be operated and carries the electrical energy contained in the motor M1 is generated to the outside of the vehicle.

The control unit 25th determined in step S32 whether there is an excess or a lack of an electrical energy or power supply rate P exists based on the electrical power Pe that is in the machine 1 is generated, and an electrical power or energy P that should be fed to the outside of the vehicle. If the excess or lack of electrical energy or power supply rate P is present, the excess or lack of electrical power supply rate P by the electrical energy supply from the electrical storage device 3rd in step S33 compensated. More specifically, if the electrical power supply rate or the power supply rate P becomes excessive, the excess or excess in the electrical storage device 3rd saved. On the other hand, if the electrical power supply rate or the power supply rate P is deficient, the shortage is caused by the supply from the electrical storage device 3rd compensated. After step S33 the process returns to step S31 back. If the excess or lack of electrical power supply rate P in step S32 the process returns to step S31 back.

11 Fig. 11 is a timing chart illustrating the electric power supply rate P in the external power supply mode. In 11 becomes the electrical energy Pe that is in the machine 1 is generated at the specified value P1 maintained. In the case where the electrical energy P that is greater than the electrical energy Pe that is in the machine 1 is generated, the deficiency P - Pe is generated by the supply from the electrical storage device 3rd compensated. Accordingly, P = Pe + Pb. In contrast, in the case where the electrical energy P that is less than the electrical energy Pe that is in the machine 1 is supplied, the excess Pe - P is generated in the electrical storage device 3rd saved. In this case, P = Pe - Pb.

In this seventh embodiment, the machine 1 steadily with a constant load P1 operated and the excess or lack of electrical power supply rate P is done by charging or discharging the electrical storage device 3rd compensated. Accordingly, the amount of exhaust gas emissions can be reduced.

Eighth Embodiment This eighth embodiment focuses on a fact that the amount of exhaust emissions is increased in the fourth case where the load of the engine 1 an upper limit P2 exceeds so as to reduce the amount of exhaust gas emissions. 12th FIG. 12 is a flowchart showing an operation of the hybrid vehicle according to the eighth embodiment of the invention in the external power supply mode 2nd compared. In step S41 from 12th the control unit calculates 25th the upper limit P2 the operating load of the machine 1 with which the exhaust gas emissions can be reduced based on the activation temperature, the degree of deterioration or the like of the catalyst 32 . Then the control unit initiates 25th the machine 1 , with a load at the upper limit P2 or less to be operated, and carries the electrical energy contained in the motor M1 is generated to the outside of the vehicle.

The control unit 25th determined in step S42 whether the electrical energy P that should be fed to the outside of the vehicle is larger than the upper limit P2 the load of the machine 1 is. If it is in step S42 when it is determined that P> P2 is satisfied, the lack of electrical power P - P2 is caused by the supply from the electrical storage device 3rd in step S43 compensated. After step S43 the process returns to step S41 back. If the lack of electrical power supply rate P in step S42 the process returns to step S41 back.

13 Fig. 11 is a timing chart illustrating the electric power supply rate P in the external power supply mode. In 13 is the electrical energy or current Pe that is in the machine 1 is generated, controlled to be equal to or less than the upper limit P2 to be. In the case where the electrical energy P that are greater than the upper limit P2 the electrical power or energy Pe of the machine 1 is fed is the shortage P Pe by the supply from the electrical storage device 3rd compensated. Accordingly, P = Pe + Pb. In the case where the electrical energy P that is less than the upper limit P2 the electrical power or energy Pe of the machine 1 , is supplied, the electrical energy P from the machine 1 fed. In this case, P = Pe.

In this eighth embodiment, the load on the machine 1 held down to equal to or less than the upper limit P2 to be. Accordingly, the amount of exhaust gas emissions can be reduced.

It should be noted that the embodiments disclosed herein are illustrative and not restrictive in all aspects. The scope of the invention is indicated not by the foregoing description but by the claims, and is intended to encompass all changes that come within the equivalent meaning and scope of the claims.

A control unit ( 25th ) for a hybrid vehicle determines whether heating a machine ( 1 ) is insufficient in an external power supply mode. If heating the machine ( 1 ) is insufficient, it is determined whether a present time is in an initial period of a power supply. When the present time is in the initial period of the power supply, only electrical energy of an electrical storage device ( 3rd ) to the outside or outside in a state in which the machine ( 1 ) is over. If the present time is not in the initial period of power supply, the machine ( 1 ) is switched on, and only electrical energy that is in the motor or motor generator ( M1 ) is supplied to the outside. If heating the machine ( 1 ) is sufficient, the electrical energy in the motor or motor generator M1 is generated, the electrical energy in the electrical storage device ( 3rd ) or both of these are released outside.

Claims (14)

Hybrid vehicle comprising: a machine (1); a catalytic converter (32) which purifies exhaust gas from the engine (1); a motor generator (M1), which is designed to be driven by the machine (1) and generate electrical energy; an electrical storage device (3) designed to charge and discharge electrical energy; a power supply device (40) configured to discharge at least one of the electrical energy generated by the motor generator (M1) or the electrical energy of the electrical storage device (3) to the outside of the vehicle; and at least one electronic control unit (25) designed to a) to control the machine (1) and the power supply device (40), b) determine whether a cleaning state of the exhaust gas of the engine (1) is insufficient or not, and c) Prioritize a supply of the electrical energy of the electrical storage device (3) to the outside of the vehicle via a supply of the electrical energy generated by the motor generator (M1) to the outside of the vehicle when the cleaning state of the exhaust gas of the engine (1) is insufficient compared to a case where the cleaning state of the exhaust gas of the engine (1) is sufficient. Hybrid vehicle after Claim 1 , wherein the electronic control unit (25) is configured to a) determine whether or not the cleaning state of the exhaust gas of the engine (1) is insufficient, by determining whether or not heating the engine (1) is insufficient, b ) if the heating of the machine (1) is insufficient to discharge the electric energy of the electric storage device (3) to the outside of the vehicle while the machine (1) is stopped, then operate the machine (1) and the electric one To deliver energy generated by the motor generator (M1) to the outside of the vehicle, and c) if the heating of the machine (1) is sufficient to actuate or stop the machine (1) and the at least one of to discharge the electrical energy generated by the motor generator (M1) or the electrical energy of the electrical storage device (3) to the outside of the vehicle. Hybrid vehicle after Claim 2 , wherein the electronic control unit (25) is designed to a) determine when the temperature of a coolant of the machine (1) is lower than a predetermined temperature that the heating of the machine (1) is insufficient, and b) if the temperature of the coolant of the engine (1) is equal to or higher than the predetermined temperature, determine that the heating of the engine (1) is sufficient. Hybrid vehicle after Claim 2 or Claim 3 , wherein the electronic control unit (25) is designed to be shorter in the case where the heating of the machine (1) is insufficient, a) when an elapsed time since electrical power supply to the outside of the vehicle is initiated than a predetermined period of time is to discharge the electric power of the electrical storage device (3) to the outside of the vehicle while the engine (1) is stopped, and b) when the elapsed period of time is equal to or longer than the predetermined period of time, to operate the machine (1) and to release the electric power generated by the motor generator (M1) to the outside of the vehicle. Hybrid vehicle after Claim 2 or Claim 3 wherein the electronic control unit (25) is designed to, in the case where the heating of the machine (1) is insufficient, a) when a state of charge of the electrical storage device (3) is higher than a predetermined state of charge, the electrical Deliver energy of the electrical storage device (3) to the outside of the vehicle while the machine (1) is stopped, and b) when the state of charge of the electrical storage device (3) is equal to or less than a predetermined state of charge, the machine ( 1) to actuate and deliver the electric power generated by the motor generator (M1) to the outside of the vehicle. Hybrid vehicle after Claim 1 , wherein the electronic control unit (25) is designed to a) determine whether the cleaning state of the exhaust gas of the engine (1) is insufficient or not, by determining whether a cleaning rate of the catalytic converter (32) is sufficiently high or not, b) if the cleaning rate of the catalytic converter (32) is not sufficiently high to release the electrical energy of the electrical storage device (3) to the outside of the vehicle while the Engine (1) is stopped, then operating the engine (1) and releasing the electric power generated by the motor generator (M1) to the outside of the vehicle, and c) when the cleaning rate of the catalyst (32) is sufficiently high to operate or stop the machine (1) and to discharge the at least one of the electrical energy generated by the motor generator (M1) or the electrical energy of the electrical storage device (3) to the outside of the vehicle. Hybrid vehicle after Claim 6 , wherein the electronic control unit (25) is configured to a) determine when the temperature of the catalyst (32) is lower than a predetermined temperature that the cleaning rate of the catalyst (32) is not sufficiently high, and b) if the temperature of the catalyst (32) is equal to or higher than the predetermined temperature, determine that the cleaning rate of the catalyst (32) is sufficiently high. Hybrid vehicle after Claim 7 wherein the electronic control unit (25) is configured to change the predetermined temperature such that the predetermined temperature rises as the catalyst (32) deteriorates. Hybrid vehicle according to one of the Claims 6 to 8th wherein the electronic control unit (25) is configured to, in the case where the cleaning rate of the catalytic converter (32) is not sufficiently high, a) when an elapsed period of time has elapsed since an electrical power supply to the outside of the vehicle has been initiated is shorter than a predetermined period of time to discharge the electric power of the electrical storage device (3) to the outside of the vehicle while the engine (1) is stopped, and b) when the elapsed period of time is equal to or longer than the predetermined period of time is to operate the machine (1) and deliver the electrical energy generated by the motor generator (M1) to the outside of the vehicle. Hybrid vehicle according to one of the Claims 6 to 8th , wherein the electronic control unit (25) is designed to, in the case where the cleaning rate of the catalytic converter (32) is not sufficiently high, a) when a state of charge of the electrical storage device (3) is higher than a predetermined state of charge, release the electric power of the electric storage device (3) to the outside of the vehicle while the engine (1) is stopped, and b) when the state of charge of the electric storage device (3) is equal to or less than the predetermined state of charge, the Operate machine (1) and the electrical energy generated by the motor generator (M1) to the outside of the vehicle. Hybrid vehicle after Claim 1 , wherein the electronic control unit (25) is configured to, in the case where the electric power generated by the motor generator (M1) is supplied to the outside of the vehicle, then the engine (1) is stopped and the electrical energy of the electrical storage device (3) is supplied to the outside of the vehicle, a) when a temperature of the catalyst (32) is lower than a predetermined temperature, to operate the engine (1) and the electrical energy generated by the Motor generator (M1) is generated to discharge to the outside of the vehicle, and b) if the temperature of the catalytic converter (32) is equal to or higher than the predetermined temperature, to operate or stop the engine (1) and at least release one of the electrical energy generated by the motor generator (M1) or the electrical energy of the electrical storage device (3) to the outside of the vehicle. Hybrid vehicle after Claim 11 wherein the electronic control unit (25) is configured to change the predetermined temperature such that the predetermined temperature rises as the catalyst (32) deteriorates. Hybrid vehicle after Claim 1 , wherein the electronic control unit (25) is configured to, in the case where the electric power generated by the motor generator (M1) is supplied to the outside of the vehicle, then the engine (1) is stopped and the electrical energy of the electrical storage device (3) is supplied to the outside of the vehicle, a) when an interrupted stopping time of the machine (1) is longer than a predetermined period of time to operate the machine (1) and the electrical energy output from the motor generator (M1) to the outside of the vehicle, and b) when the interrupted stopping time of the machine (1) is equal to or shorter than the predetermined time period, to operate or stop the machine (1) and to discharge at least one of the electric power generated by the motor generator (M1) or the electric power of the electric storage device (3) to the outside of the vehicle. Hybrid vehicle after Claim 13 , wherein the electronic control unit (25) is configured to change the predetermined period of time such that the predetermined time period decreases when the catalyst (32) deteriorates.

Images